High power PBS cube

Polarization components are used to separate a beam of light into its orthogonal polarization states for isolation or routing.  Our catalog includes both cube and plate polarizers designed to perform under a range of operating conditions, including high power, broad bandwidth, low dispersion, and high extinction.  This is achieved using ion beam sputtered and e-beam dielectric coatings, some capable of greater than 1000:1 extinction ratio.  When combined with our precision manufacturing, they result in laser quality plate polarizers with better than λ/8 transmitted wavefront error, and 10 – 5 surface quality.

Standard and laser quality polarizing cube beamsplitters available from the catalog use one of several contacting technologies: optical contacting, optical adhesive contacting, or diffusion bonding.  All have antireflection coatings for maximum throughput.  
All of these options and more are available when you consider a custom polarizer design.  Not only can we work in other materials and at larger or smaller dimensions, but we can optimize the wavelength of the coating to your specific application, or design it for low absorption.  Custom polarizing beamsplitter cubes can be manufactured with very high precision angular tolerance and low transmitted wavefront error to minimize impact on the transmitted beam.  As in our catalog line, we can design both plate and cube polarizers to operate at either the Brewster angle or 45° angle of incidence.  

Capabilities

 
Standard & Semi-custom
Types
Plate, cube, Brewster angle
Materials
N-BK7, UV-grade fused silica, N-SF2
Dimensions
12.7 to 50.8 mm
Extinction Ratio
100:1 to 1000:1
Coatings
Laser line polarizing
Broadband polarizing
High energy
Wavelengths from 248 to 1300 nm
Quality
Standard and laser quality
Construction (cubes)
Optical adhesive contacting
Chemically activated direct bonding
Optical contacting
Cube Polarizer Manufacturing Capabilities
Surface  Tolerances
Precision
Laser Quality
High Precision
Surface quality (scratch - dig)
20 - 10
10 - 5
5 - 1
Surface roughness (Å, RMS)
20
5
3
Flat Irregularity,
(P-V @ 633 nm before coating)
λ/4
λ/10
λ/20
Dimensional  Tolerances
Standard
Precision
High Precision
Length & width (mm)
+0.000 / -0.250
± 0.150
+0.000 / -0.010
Thickness (mm)
+0.000 / -0.250
± 0.150
± 0.005
Angular deviation
< 3 arc min
≤ 10 arc sec
≤ 0.5 arc sec
Clear Aperture
≥ 85%
≥ 90%
≥ 95%
Plate Polarizer Manufacturing Capabilities
Surface  Tolerances
Precision
Laser Quality
High Precision
Surface Quality
(scratch - dig)
40 - 20
10 - 5
5 - 2
Surface roughness (Å, RMS)
20
5
1
Surface Figure
(P-V @ 633 nm before coating)
λ/2
λ/10
λ/25
Dimensional  Tolerances
Commercial
Precision
High Precision
Diameter (mm)
+0.000 / -0.250
+0.000 / -0.100
+0.000 / -0.010
Length & width (mm)
± 0.050
+0.000 / -0.125
+0.000 / -0.010
Thickness (mm)
± 0.250
± 0.100
± 0.010
Angular deviation
< 5 arc min
≤ 1 arc sec
≤ 0.5 arc sec
Centration (ETV, mm)
0.05
0.01
0.005
Clear Aperture
≥ 85%
≥ 90%
≥ 95%
Spherical  Tolerances
Commercial
Precision
High Precision
Spherical irregularity (P-V
@ 633 nm before coating)
λ/2
λ/5
λ/100
Spherical radius (fringes)
5
3
0.5
Lasertec provide epoxy free bonding technology for PBS cube for high power laser application, With our IBS coating to support high power LITD upto 10J/cm2 1064nm 10ns in variety of materials including FS, YAG   
Specifications of  High Power Polarization Beamsplitter Cube
Part No.
HPBS635-1064
HPBS127-1064
HPBS635-980
HPBS127-980
Wavelength
1064 nm
1064 nm
980 nm
980 nm
Reflection
>99.9%
>99.9%
>99.9%
>99.9%
Transmission
>97%
>97%
>97%
>97%
Extinction Ratio,
>1,000:1
>1,000:1
>1,000:1
>1,000:1
AR Coating
<0.20% per surface
<0.20% per surface
<0.20% per surface
<0.20% per surface
Surface Flatness
λ/10
λ/10
λ/10
λ/10
Wavefront Distortion
λ/8 transmitted
λ/8 transmitted
λ/8 transmitted
λ/8 transmitted
Reflected Beam
90°
90°
90°
90°
Scratch-Dig
10-5
10-5
10-5
10-5
Beam Deviation
< 5 arcmin
< 3 arcmin
< 3 arcmin
< 3 arcmin